A survey of occupational exposures to 1,3-dichloropropene (542756) (DCP) during pineapple cultivation was conducted. Personal and area air samples were collected from mulch machine attendants, crown unloaders, mulch sled drivers, planting machine drivers, irrigation workers, lunas (supervisors), maintenance workers, mulch coverers, planters, and supply truck drivers at two pineapple plantations (SIC- charcoal using low volume pumps. After desorption with methanol/benzene, they were analyzed for DCP by gas chromatography within 72 hours. Mean DCP exposures by job category were: mulch machine attendants, 1019 parts per billion (ppb); crown unloader, 310ppb; mulch sled driver, 328ppb; planting machine driver, 368ppb; grader driver, 33ppb; irrigation worker, 7ppb; lunas, 46 to 451ppb; maintenance workers, 37ppb; two row mulch coverers, 38ppb; three row mulch coverers, 275ppb; planters, 7ppb; and supply truck driver, 247ppb. Detailed descriptions of the jobs involved in cultivating pineapples were also given. The author concludes that DCP exposures were generally below 1 part per million, the threshold limit value established by the American Conference of Governmental Industrial Hygienists and the no effect level determined in experimental animals.